What are the hazards for excavation?
1. Pit Excavation up to 3m
| Type of hazard | Effects of hazard |
|---|---|
| Falling into pit | Personal injury |
| Earth collapse | Suffocation /breathlessness, Buried |
| Contact with buried electric cable, Gas / Oil Pipelines | Electrocution, and Explosion |
What are the major types of caught in and caught between hazards in construction?
“Caught in-between” hazards kill workers in a variety of ways. These include: cave-ins and other hazards of excavation work; body parts pulled into unguarded machinery; standing within the swing radius of cranes and other construction equipment; caught between equipment & fixed objects.
What is a caught in or between hazard?
According to OSHA, caught-in or – between hazards are defined as: Injuries resulting from a person being squeezed, caught, crushed, pinched, or compressed between two or more objects, or between parts of an object.
Which of the following are examples of caught in or between hazard?
Caught-in or –Between hazards cause crushing injuries when a person is squeezed, caught, crushed, pinched, or compressed between two or more objects. This may include: Being crushed in equipment • Being crushed between mashing objects or a moving and stationary object • Being crushed between two or more moving objects.
Can power tools create a caught in Hazard?
Major hazards: When machines or power tools are not properly guarded, workers can get their clothing or parts of their body caught in the machines. Workers can be trapped and crushed under heavy equipment that tips, especially if they are thrown from the equipment.
What is the best way to protect yourself from getting caught-in power tools?
Keep all people not involved with the work at a safe distance from the work area. Secure work with clamps or a vise, freeing both hands to operate the tool. Avoid accidental starting. Do not hold fingers on the switch button while carrying a plugged-in tool.
What are the four common types of struck by hazards?
This is due to the numerous hazards that can create struck-by injuries. There are four common struck-by hazards in construction: struck-by flying objects, struck-by falling objects, struck-by swinging objects and struck-by rolling objects.
Which types of objects can contribute to caught-in or caught-in between incidents?
Avoiding OSHA’s Fatal Four – Caught-In/Between Hazards
- Caught-in/Between Hazards. Caught-in or caught-between accidents occur when someone is caught, crushed, squeezed, compressed or pinched between two or more objects.
- Power Tools & Machinery Accidents.
- Heavy Equipment Accidents.
- Trenching Accidents.
What are the main causes of caught in between deaths?
More than two in three of caught-in/between fatalities from 2011 to 2015 were due to being caught or crushed in collapsing materials. 93% of all nonfatal caught-in/between injuries were caused by equipment or objects.
What should you do if a cave in occurs?
Shielding involves using trench boxes also known as trench shields or other supports to protect workers inside a trench from collapsing soil if a cave-in occurs. The competent person should pick a trench box that is right for the soil type and all other site conditions.
What is the greatest danger associated with excavations?
- The greatest risk in an excavation is a cave-in.
- Employees can be protected through sloping, shielding, and shoring the excavation.
- A competent person is responsible to inspect the excavation.
- Other excavation hazards include water accumulation, oxygen deficiency, toxic fumes, falls, and mobile equipment.
What is a cave-in Hazard?
A cave-in occurs when walls of an excavation collapse. Cave-ins can be deadly. Wall failures often occur suddenly, with little or no time for the worker to react. The weight of the soil crushes and twists the body, causing death or serious injury in a matter of minutes.
What is shielding in excavation?
Shield. (shield system) a structure that is able. to withstand the forces imposed on it by a cavein and thereby protect the employees within the structure. Shielding systems are designed to be moved as the trench is being excavated and successive sections of pipe are laid.
What is the difference between shoring and shielding?
Shoring should not be confused with shielding by means of trench shields. Shoring is designed to prevent collapse, whilst shielding is only designed to protect workers should collapse occur. Most professionals agree that shoring is the safer approach of the two.
What is benching in excavation?
“Benching (Benching system)” means a method of protecting employees from cave-ins by excavating the sides of an excavation to form one or a series of horizontal levels or steps, usually with vertical or near-vertical surfaces between levels.
How many types of shoring are there?
5
What are the basic types of shoring?
Shoring systems consist of posts, wales, struts, and sheeting. There are two basic types of shoring, timber and aluminum hydraulic.
What are shoring plans?
Shoring is the process of temporarily supporting a building, vessel, structure, or trench with shores (props) when in danger of collapse or during repairs or alterations. Shoring comes from shore, a timber or metal prop. Shoring may be vertical, angled, or horizontal.
What is a shoring system?
Shoring Systems are temporary structural elements that serve to transfer loads during the various stages of construction. Props made of steel or aluminium are used which are often connected by means of frames to form shoring towers or slab tables.
What is benching of soil?
A benched excavation also called benching can be defined as a type of excavation that consists of a series of horizontal steps with near-vertical surfaces between them. This is done as a safety measure to prevent the excavated walls from collapsing inwards and trapping the construction workers.
How deep can you dig without shoring?
Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.
What does benching mean?
bread-crumbing
What is benching in dating?
Simply put, benching, according to Urban Dictionary, is when you like someone enough to keep seeing them, but not enough that you want to lock it down with them, so you keep them as an option while you continue to date around.
How much should I be benching?
Bench press average by age
| Age | Total weight |
|---|---|
| 20–29 | 100 percent of your body weight |
| 30–39 | 90 percent of your body weight |
| 40–49 | 80 percent of your body weight |
| 50–59 | 75 percent of your body weight |
What is cushioning in dating?
Cushioning, according to Urban Dictionary, happens when someone is entertaining other potential romantic “options” while they’re in a committed relationship. And it’s a dating trend we wish didn’t exist. ADVERTISEMENT.
What is being Mermaided in dating?
Casually moving on from these two very real dating trends, Rebel briefly mentions “mermaiding,” which immediately causes a double-take. “It’s, like, when a girl goes out with a guy to a boardwalk and then she gets really bored with the date. So, she just goes into the ocean and you never see her again.”